GMAT Study Material/Course Info. - INDICATIONS (Bangalore)

I'm considering taking the GMAT early next year and I'm doing some research here in Bangalore about training courses for the test. I've called Chopras and Princeton Review and the average cost for 60h preparation classes is around 23,000 and for 72h around 25,500 respectively, with study material included plus other benefits.

For the expats who already did the GMAT, how much time/money did you invest on it?By any chance do any of you have the study materials with you to lend/sell?